TY  - BOOK
AU  - Singh, Yadvinder
AU  - Nayyar, V. K.
AU  - Singh, Bijay
TI  - Nutrient Management For Sustainable Rice-Wheat Cropping System
U1  - 633.188911 
PY  - 2003///
CY  - New Delhi
PB  - National Agricultura Technology Project
KW  - Agriculture and related technologies
KW  - Technology (Applied sciences)
KW  - Nutrient management
KW  - Rice-Wheat cropping system
ER  -